Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing our new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress, the opposite side being substantially the same as that shown;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a fragmentary side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front elevational view thereof.

The broken lines shown in FIGS. 1 and 3 of the drawing are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 